static inline void
extract_and_queue_tags (GstJpegParse * parse, guint size, guint8 * data,
GstTagList * (*tag_func) (GstBuffer * buff))
{
GstTagList *tags;
GstBuffer *buf;
buf = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY, data, size, 0,
size, NULL, NULL);
tags = tag_func (buf);
gst_buffer_unref (buf);
if (tags) {
GstTagList *taglist = parse->priv->tags;
if (taglist) {
gst_tag_list_insert (taglist, tags, GST_TAG_MERGE_REPLACE);
gst_tag_list_unref (tags);
} else {
parse->priv->tags = tags;
}
GST_DEBUG_OBJECT (parse, "collected tags: %" GST_PTR_FORMAT,
parse->priv->tags);
}
}
void ofxGstRTPServer::sendAudioOut(PooledAudioFrame * pooledFrame){
GstClock * clock = gst_pipeline_get_clock(GST_PIPELINE(gst.getPipeline()));
gst_object_ref(clock);
GstClockTime now = gst_clock_get_time (clock) - gst_element_get_base_time(gst.getPipeline());
gst_object_unref (clock);
if(firstAudioFrame && !audioAutoTimestamp){
prevTimestampAudio = now;
firstAudioFrame = false;
return;
}
int size = pooledFrame->audioFrame._payloadDataLengthInSamples*2*pooledFrame->audioFrame._audioChannel;
GstBuffer * echoCancelledBuffer = gst_buffer_new_wrapped_full(GST_MEMORY_FLAG_READONLY,(void*)pooledFrame->audioFrame._payloadData,size,0,size,pooledFrame,(GDestroyNotify)&ofxWebRTCAudioPool::relaseFrame);
if(!audioAutoTimestamp){
GstClockTime duration = (pooledFrame->audioFrame._payloadDataLengthInSamples * GST_SECOND / pooledFrame->audioFrame._frequencyInHz);
GstClockTime now = prevTimestamp + duration;
GST_BUFFER_OFFSET(echoCancelledBuffer) = numFrameAudio++;
GST_BUFFER_OFFSET_END(echoCancelledBuffer) = numFrameAudio;
GST_BUFFER_DTS (echoCancelledBuffer) = now;
GST_BUFFER_PTS (echoCancelledBuffer) = now;
GST_BUFFER_DURATION(echoCancelledBuffer) = duration;
prevTimestampAudio = now;
}
GstFlowReturn flow_return = gst_app_src_push_buffer((GstAppSrc*)appSrcAudio, echoCancelledBuffer);
if (flow_return != GST_FLOW_OK) {
ofLogError(LOG_NAME) << "error pushing audio buffer: flow_return was " << flow_return;
}
}
gboolean
decoder_put_buffers (GstVaapiDecoder * decoder)
{
const CodecDefs *codec;
VideoDecodeInfo info;
GstBuffer *buffer;
gboolean success;
g_return_val_if_fail (decoder != NULL, FALSE);
codec = get_codec_defs (decoder);
g_return_val_if_fail (codec != NULL, FALSE);
codec->get_video_info (&info);
buffer = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
(guchar *) info.data, info.data_size, 0, info.data_size, NULL, NULL);
if (!buffer) {
GST_ERROR ("failed to create encoded data buffer");
return FALSE;
}
success = gst_vaapi_decoder_put_buffer (decoder, buffer);
gst_buffer_unref (buffer);
if (!success) {
GST_ERROR ("failed to send video data to the decoder");
return FALSE;
}
if (!gst_vaapi_decoder_put_buffer (decoder, NULL)) {
GST_ERROR ("failed to submit <end-of-stream> to the decoder");
return FALSE;
}
return TRUE;
}
/*
* Runs the RTP pipeline.
* @param p Pointer to the RTP pipeline.
*/
static void
rtp_pipeline_run (rtp_pipeline * p)
{
GstFlowReturn flow_ret;
GMainLoop *mainloop = NULL;
GstBus *bus;
gint i, j;
/* Check parameters. */
if (p == NULL) {
return;
}
/* Create mainloop. */
mainloop = g_main_loop_new (NULL, FALSE);
if (!mainloop) {
return;
}
/* Add bus callback. */
bus = gst_pipeline_get_bus (GST_PIPELINE (p->pipeline));
gst_bus_add_watch (bus, rtp_bus_callback, (gpointer) mainloop);
gst_object_unref (bus);
/* Set pipeline to PLAYING. */
gst_element_set_state (p->pipeline, GST_STATE_PLAYING);
/* Push data into the pipeline */
for (i = 0; i < LOOP_COUNT; i++) {
const guint8 *data = p->frame_data;
for (j = 0; j < p->frame_count; j++) {
GstBuffer *buf;
buf =
gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
(guint8 *) data, p->frame_data_size, 0, p->frame_data_size, NULL,
NULL);
g_signal_emit_by_name (p->appsrc, "push-buffer", buf, &flow_ret);
fail_unless_equals_int (flow_ret, GST_FLOW_OK);
data += p->frame_data_size;
gst_buffer_unref (buf);
}
}
g_signal_emit_by_name (p->appsrc, "end-of-stream", &flow_ret);
/* Run mainloop. */
g_main_loop_run (mainloop);
/* Set pipeline to NULL. */
gst_element_set_state (p->pipeline, GST_STATE_NULL);
/* Release mainloop. */
g_main_loop_unref (mainloop);
}
static GstFlowReturn
gst_shm_src_create (GstPushSrc * psrc, GstBuffer ** outbuf)
{
GstShmSrc *self = GST_SHM_SRC (psrc);
gchar *buf = NULL;
int rv = 0;
struct GstShmBuffer *gsb;
do {
if (gst_poll_wait (self->poll, GST_CLOCK_TIME_NONE) < 0) {
if (errno == EBUSY)
return GST_FLOW_FLUSHING;
GST_ELEMENT_ERROR (self, RESOURCE, READ, ("Failed to read from shmsrc"),
("Poll failed on fd: %s", strerror (errno)));
return GST_FLOW_ERROR;
}
if (self->unlocked)
return GST_FLOW_FLUSHING;
if (gst_poll_fd_has_closed (self->poll, &self->pollfd)) {
GST_ELEMENT_ERROR (self, RESOURCE, READ, ("Failed to read from shmsrc"),
("Control socket has closed"));
return GST_FLOW_ERROR;
}
if (gst_poll_fd_has_error (self->poll, &self->pollfd)) {
GST_ELEMENT_ERROR (self, RESOURCE, READ, ("Failed to read from shmsrc"),
("Control socket has error"));
return GST_FLOW_ERROR;
}
if (gst_poll_fd_can_read (self->poll, &self->pollfd)) {
buf = NULL;
GST_LOG_OBJECT (self, "Reading from pipe");
GST_OBJECT_LOCK (self);
rv = sp_client_recv (self->pipe->pipe, &buf);
GST_OBJECT_UNLOCK (self);
if (rv < 0) {
GST_ELEMENT_ERROR (self, RESOURCE, READ, ("Failed to read from shmsrc"),
("Error reading control data: %d", rv));
return GST_FLOW_ERROR;
}
}
} while (buf == NULL);
GST_LOG_OBJECT (self, "Got buffer %p of size %d", buf, rv);
gsb = g_slice_new0 (struct GstShmBuffer);
gsb->buf = buf;
gsb->pipe = self->pipe;
gst_shm_pipe_inc (self->pipe);
*outbuf = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
buf, rv, 0, rv, gsb, free_buffer);
return GST_FLOW_OK;
}
/* spice_gst_decoder_queue_frame() queues the SpiceFrame for decoding and
* displaying. The steps it goes through are as follows:
*
* 1) A SpiceGstFrame is created to keep track of SpiceFrame and some additional
* metadata. The SpiceGstFrame is then pushed to the decoding_queue.
* 2) frame->data, which contains the compressed frame data, is reffed and
* wrapped in a GstBuffer which is pushed to the GStreamer pipeline for
* decoding.
* 3) As soon as the GStreamer pipeline no longer needs the compressed frame it
* will call frame->unref_data() to free it.
* 4) Once the decompressed frame is available the GStreamer pipeline calls
* new_sample() in the GStreamer thread.
* 5) new_sample() then matches the decompressed frame to a SpiceGstFrame from
* the decoding queue using the GStreamer timestamp information to deal with
* dropped frames. The SpiceGstFrame is popped from the decoding_queue.
* 6) new_sample() then attaches the decompressed frame to the SpiceGstFrame,
* pushes it to the display_queue and calls schedule_frame().
* 7) schedule_frame() then uses gstframe->frame->mm_time to arrange for
* display_frame() to be called, in the main thread, at the right time for
* the next frame.
* 8) display_frame() pops the first SpiceGstFrame from the display_queue and
* calls stream_display_frame().
* 9) display_frame() then frees the SpiceGstFrame, which frees the SpiceFrame
* and decompressed frame with it.
*/
static gboolean spice_gst_decoder_queue_frame(VideoDecoder *video_decoder,
SpiceFrame *frame, int latency)
{
SpiceGstDecoder *decoder = (SpiceGstDecoder*)video_decoder;
if (frame->size == 0) {
SPICE_DEBUG("got an empty frame buffer!");
frame->free(frame);
return TRUE;
}
if (frame->mm_time < decoder->last_mm_time) {
SPICE_DEBUG("new-frame-time < last-frame-time (%u < %u):"
" resetting stream",
frame->mm_time, decoder->last_mm_time);
/* Let GStreamer deal with the frame anyway */
}
decoder->last_mm_time = frame->mm_time;
if (latency < 0 &&
decoder->base.codec_type == SPICE_VIDEO_CODEC_TYPE_MJPEG) {
/* Dropping MJPEG frames has no impact on those that follow and
* saves CPU so do it.
*/
SPICE_DEBUG("dropping a late MJPEG frame");
frame->free(frame);
return TRUE;
}
if (decoder->pipeline == NULL) {
/* An error occurred, causing the GStreamer pipeline to be freed */
spice_warning("An error occurred, stopping the video stream");
return FALSE;
}
/* ref() the frame data for the buffer */
frame->ref_data(frame->data_opaque);
GstBuffer *buffer = gst_buffer_new_wrapped_full(GST_MEMORY_FLAG_PHYSICALLY_CONTIGUOUS,
frame->data, frame->size, 0, frame->size,
frame->data_opaque, frame->unref_data);
GST_BUFFER_DURATION(buffer) = GST_CLOCK_TIME_NONE;
GST_BUFFER_DTS(buffer) = GST_CLOCK_TIME_NONE;
GST_BUFFER_PTS(buffer) = gst_clock_get_time(decoder->clock) - gst_element_get_base_time(decoder->pipeline) + ((uint64_t)MAX(0, latency)) * 1000 * 1000;
g_mutex_lock(&decoder->queues_mutex);
g_queue_push_tail(decoder->decoding_queue, create_gst_frame(buffer, frame));
g_mutex_unlock(&decoder->queues_mutex);
if (gst_app_src_push_buffer(decoder->appsrc, buffer) != GST_FLOW_OK) {
SPICE_DEBUG("GStreamer error: unable to push frame of size %u", frame->size);
stream_dropped_frame_on_playback(decoder->base.stream);
}
return TRUE;
}
void ofxGstRTPServer::newFrameDepth(ofPixels & pixels, GstClockTime timestamp){
// here we push new depth frames in the pipeline, it's important
// to timestamp them properly so gstreamer can sync them with the
// audio.
if(!bufferPoolDepth || !appSrcDepth) return;
GstClockTime now = timestamp;
if(!depthAutoTimestamp){
if(now==GST_CLOCK_TIME_NONE){
now = getTimeStamp();
}
if(firstDepthFrame){
prevTimestampDepth = now;
firstDepthFrame = false;
return;
}
}
// get a pixels buffer from the pool and copy the passed frame into it
PooledPixels<unsigned char> * pooledPixels = bufferPoolDepth->newBuffer();
//pooledPixels->swap(pixels);
*(ofPixels*)pooledPixels=pixels;
// wrap the pooled pixels into a gstreamer buffer and pass the release
// callback so when it's not needed anymore by gst we can return it to the pool
GstBuffer * buffer;
buffer = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,pooledPixels->getPixels(), pooledPixels->size(), 0, pooledPixels->size(), pooledPixels, (GDestroyNotify)&ofxGstBufferPool<unsigned char>::relaseBuffer);
// timestamp the buffer, right now we are using:
// timestamp = current pipeline time - base time
// duration = timestamp - previousTimeStamp
// the duration is actually the duration of the previous frame
// but should be accurate enough
if(!depthAutoTimestamp){
GST_BUFFER_OFFSET(buffer) = numFrameDepth++;
GST_BUFFER_OFFSET_END(buffer) = numFrameDepth;
GST_BUFFER_DTS (buffer) = now;
GST_BUFFER_PTS (buffer) = now;
GST_BUFFER_DURATION(buffer) = now-prevTimestampDepth;
prevTimestampDepth = now;
}
if(sendDepthKeyFrame){
emitDepthKeyFrame();
}
// finally push the buffer into the pipeline through the appsrc element
GstFlowReturn flow_return = gst_app_src_push_buffer((GstAppSrc*)appSrcDepth, buffer);
if (flow_return != GST_FLOW_OK) {
ofLogError() << "error pushing depth buffer: flow_return was " << flow_return;
}
}
static HRESULT WINAPI Gstreamer_transform_ProcessData(TransformFilter *iface, IMediaSample *sample)
{
GstTfImpl *This = (GstTfImpl*)iface;
REFERENCE_TIME tStart, tStop;
BYTE *data;
GstBuffer *buf;
HRESULT hr;
DWORD bufsize;
int ret;
TRACE("%p, %p\n", This, sample);
mark_wine_thread();
EnterCriticalSection(&This->tf.csReceive);
IMediaSample_GetPointer(sample, &data);
IMediaSample_AddRef(sample);
bufsize = IMediaSample_GetActualDataLength(sample);
buf = gst_buffer_new_wrapped_full(0, data, bufsize, 0, bufsize, sample, release_sample_wrapper);
if (!buf) {
IMediaSample_Release(sample);
LeaveCriticalSection(&This->tf.csReceive);
return S_OK;
}
IMediaSample_AddRef(sample);
gst_mini_object_set_qdata(GST_MINI_OBJECT(buf), g_quark_from_static_string(media_quark_string), sample, release_sample_wrapper);
buf->duration = buf->pts = -1;
hr = IMediaSample_GetTime(sample, &tStart, &tStop);
if (SUCCEEDED(hr)) {
buf->pts = tStart * 100;
if (hr == S_OK)
buf->duration = (tStop - tStart)*100;
}
if (IMediaSample_GetMediaTime(sample, &tStart, &tStop) == S_OK) {
buf->offset = tStart * 100;
buf->offset_end = tStop * 100;
}
if (IMediaSample_IsDiscontinuity(sample) == S_OK)
GST_BUFFER_FLAG_SET(buf, GST_BUFFER_FLAG_DISCONT);
if (IMediaSample_IsPreroll(sample) == S_OK)
GST_BUFFER_FLAG_SET(buf, GST_BUFFER_FLAG_LIVE);
if (IMediaSample_IsSyncPoint(sample) != S_OK)
GST_BUFFER_FLAG_SET(buf, GST_BUFFER_FLAG_DELTA_UNIT);
LeaveCriticalSection(&This->tf.csReceive);
ret = gst_pad_push(This->my_src, buf);
if (ret)
WARN("Sending returned: %i\n", ret);
if (ret == GST_FLOW_FLUSHING)
return VFW_E_WRONG_STATE;
return S_OK;
}
static GstFlowReturn
_src_getrange (GstPad * pad, GstObject * parent, guint64 offset, guint length,
GstBuffer ** buffer)
{
if (offset + length > sizeof (mxf_file))
return GST_FLOW_EOS;
*buffer = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
(guint8 *) (mxf_file + offset), length, 0, length, NULL, NULL);
return GST_FLOW_OK;
}
static GstBuffer *
create_buffer (guint8 * data, gsize size)
{
GstBuffer * buf = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
data, size, 0, size, NULL, NULL);
GST_BUFFER_PTS (buf) = GST_CLOCK_TIME_NONE;
GST_BUFFER_DTS (buf) = GST_CLOCK_TIME_NONE;
GST_BUFFER_DURATION (buf) = GST_CLOCK_TIME_NONE;
GST_BUFFER_OFFSET (buf) = GST_BUFFER_OFFSET_NONE;
GST_BUFFER_OFFSET_END (buf) = GST_BUFFER_OFFSET_NONE;
return buf;
}
static GList *
_make_buffers_out (GList * buffer_out, guint8 * test_data, gsize test_data_size)
{
GstBuffer *buffer;
buffer =
gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY, test_data,
test_data_size, 0, test_data_size, NULL, NULL);
buffer_out = g_list_append (buffer_out, buffer);
return buffer_out;
}
static GstStructure *
get_stereo_wave_buffer (gpointer user_data, guint wave_ix, guint wave_level_ix)
{
static gint16 data[] = { G_MININT16, -1, 1, G_MAXINT16 };
GstBuffer *buffer = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
data, sizeof (data), 0, sizeof (data), NULL, NULL);
return gst_structure_new ("audio/x-raw",
"channels", G_TYPE_INT, 2,
"root-note", GSTBT_TYPE_NOTE, (guint) GSTBT_NOTE_C_3,
"buffer", GST_TYPE_BUFFER, buffer, NULL);
}
static GstBuffer *
create_buffer (guint8 * data, gsize size,
GstClockTime timestamp, GstClockTime duration)
{
GstBuffer * buf = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
data, size, 0, size, NULL, NULL);
GST_BUFFER_PTS (buf) = timestamp;
GST_BUFFER_DTS (buf) = timestamp;
GST_BUFFER_DURATION (buf) = duration;
GST_BUFFER_OFFSET (buf) = 0;
GST_BUFFER_OFFSET_END (buf) = 0;
return buf;
}
static GList *
_make_buffers_in (GList * buffer_in, guint8 * test_data, gsize test_data_size)
{
GstBuffer *buffer;
gsize i;
for (i = 0; i < test_data_size; i++) {
buffer =
gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY, test_data + i, 1,
0, 1, NULL, NULL);
buffer_in = g_list_append (buffer_in, buffer);
}
return buffer_in;
}
static gboolean
gst_validate_ssim_get_frame_from_png (GstValidateSsim * self, const char *file,
GstVideoFrame * frame)
{
guint8 *data;
GstBuffer *buf;
GstVideoInfo info;
cairo_surface_t *surface = NULL;
surface = cairo_image_surface_create_from_png (file);
if (surface == NULL
|| (cairo_surface_status (surface) != CAIRO_STATUS_SUCCESS)) {
GST_VALIDATE_REPORT (self, GENERAL_INPUT_ERROR, "Could not open %s: %s",
file, cairo_status_to_string (cairo_surface_status (surface)));
return FALSE;
}
gst_video_info_init (&info);
gst_video_info_set_format (&info,
_get_format_from_surface (surface),
cairo_image_surface_get_width (surface),
cairo_image_surface_get_height (surface));
data = cairo_image_surface_get_data (surface);
buf = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
data, info.size, 0, info.size, surface,
(GDestroyNotify) cairo_surface_destroy);
if (!gst_video_frame_map (frame, &info, buf, GST_MAP_READ)) {
gst_buffer_unref (buf);
GST_VALIDATE_REPORT (self, GENERAL_INPUT_ERROR,
"Could not map input frame");
return FALSE;
}
gst_buffer_unref (buf);
return TRUE;
}
static GstStructure *
get_wave_buffer (BtWavetable * self, guint wave_ix, guint wave_level_ix)
{
BtWave *wave;
BtWavelevel *wavelevel;
GstStructure *s = NULL;
if ((wave = bt_wavetable_get_wave_by_index (self, wave_ix))) {
if ((wavelevel = bt_wave_get_level_by_index (wave, wave_level_ix))) {
GstBuffer *buffer = NULL;
gpointer *data;
gulong length;
guint channels;
GstBtNote root_note;
gsize size;
g_object_get (wave, "channels", &channels, NULL);
g_object_get (wavelevel, "data", &data, "length", &length, "root-note",
&root_note, NULL);
size = channels * length * sizeof (gint16);
buffer =
gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY, data, size, 0,
size, NULL, NULL);
s = gst_structure_new ("audio/x-raw", // unused
"format", G_TYPE_STRING, GST_AUDIO_NE (S16), // unused
"layout", G_TYPE_STRING, "interleaved", // unused
"rate", G_TYPE_INT, 44100, // unused
"channels", G_TYPE_INT, channels,
"root-note", GSTBT_TYPE_NOTE, (guint) root_note,
"buffer", GST_TYPE_BUFFER, buffer, NULL);
g_object_unref (wavelevel);
}
g_object_unref (wave);
}
return s;
}
void ofxGstRTPServer::newOscMsg(ofxOscMessage & msg, GstClockTime timestamp){
if(!appSrcOsc) return;
GstClockTime now = timestamp;
if(!oscAutoTimestamp){
if(now==GST_CLOCK_TIME_NONE){
now = getTimeStamp();
}
if(firstOscFrame){
prevTimestampOsc = now;
firstOscFrame = false;
return;
}
}
PooledOscPacket * pooledOscPkg = oscPacketPool.newBuffer();
appendMessage(msg,pooledOscPkg->packet);
GstBuffer * buffer = gst_buffer_new_wrapped_full(GST_MEMORY_FLAG_READONLY,(void*)pooledOscPkg->compressedData(),pooledOscPkg->compressedSize(),0,pooledOscPkg->compressedSize(),pooledOscPkg,(GDestroyNotify)&ofxOscPacketPool::relaseBuffer);
if(!oscAutoTimestamp){
GST_BUFFER_OFFSET(buffer) = numFrameOsc++;
GST_BUFFER_OFFSET_END(buffer) = numFrameOsc;
GST_BUFFER_DTS (buffer) = now;
GST_BUFFER_PTS (buffer) = now;
GST_BUFFER_DURATION(buffer) = now-prevTimestampOsc;
prevTimestampOsc = now;
}
GstFlowReturn flow_return = gst_app_src_push_buffer((GstAppSrc*)appSrcOsc, buffer);
if (flow_return != GST_FLOW_OK) {
ofLogError() << "error pushing osc buffer: flow_return was " << flow_return;
}
}
static GstFlowReturn
gst_ffmpegaudenc_encode_audio (GstFFMpegAudEnc * ffmpegaudenc,
GstBuffer * buffer, gint * have_data)
{
GstAudioEncoder *enc;
AVCodecContext *ctx;
gint res;
GstFlowReturn ret;
GstAudioInfo *info;
AVPacket *pkt;
AVFrame *frame = ffmpegaudenc->frame;
gboolean planar;
gint nsamples = -1;
enc = GST_AUDIO_ENCODER (ffmpegaudenc);
ctx = ffmpegaudenc->context;
pkt = g_slice_new0 (AVPacket);
if (buffer != NULL) {
BufferInfo *buffer_info = g_slice_new0 (BufferInfo);
guint8 *audio_in;
guint in_size;
buffer_info->buffer = buffer;
gst_buffer_map (buffer, &buffer_info->map, GST_MAP_READ);
audio_in = buffer_info->map.data;
in_size = buffer_info->map.size;
GST_LOG_OBJECT (ffmpegaudenc, "encoding buffer %p size:%u", audio_in,
in_size);
info = gst_audio_encoder_get_audio_info (enc);
planar = av_sample_fmt_is_planar (ffmpegaudenc->context->sample_fmt);
frame->format = ffmpegaudenc->context->sample_fmt;
frame->sample_rate = ffmpegaudenc->context->sample_rate;
frame->channels = ffmpegaudenc->context->channels;
frame->channel_layout = ffmpegaudenc->context->channel_layout;
if (planar && info->channels > 1) {
gint channels;
gint i, j;
nsamples = frame->nb_samples = in_size / info->bpf;
channels = info->channels;
frame->buf[0] =
av_buffer_create (NULL, 0, buffer_info_free, buffer_info, 0);
if (info->channels > AV_NUM_DATA_POINTERS) {
buffer_info->ext_data_array = frame->extended_data =
av_malloc_array (info->channels, sizeof (uint8_t *));
} else {
frame->extended_data = frame->data;
}
buffer_info->ext_data = frame->extended_data[0] = av_malloc (in_size);
frame->linesize[0] = in_size / channels;
for (i = 1; i < channels; i++)
frame->extended_data[i] =
frame->extended_data[i - 1] + frame->linesize[0];
switch (info->finfo->width) {
case 8: {
const guint8 *idata = (const guint8 *) audio_in;
for (i = 0; i < nsamples; i++) {
for (j = 0; j < channels; j++) {
((guint8 *) frame->extended_data[j])[i] = idata[j];
}
idata += channels;
}
break;
}
case 16: {
const guint16 *idata = (const guint16 *) audio_in;
for (i = 0; i < nsamples; i++) {
for (j = 0; j < channels; j++) {
((guint16 *) frame->extended_data[j])[i] = idata[j];
}
idata += channels;
}
break;
}
case 32: {
const guint32 *idata = (const guint32 *) audio_in;
for (i = 0; i < nsamples; i++) {
for (j = 0; j < channels; j++) {
((guint32 *) frame->extended_data[j])[i] = idata[j];
}
idata += channels;
}
break;
}
case 64: {
const guint64 *idata = (const guint64 *) audio_in;
for (i = 0; i < nsamples; i++) {
for (j = 0; j < channels; j++) {
((guint64 *) frame->extended_data[j])[i] = idata[j];
}
idata += channels;
}
break;
}
default:
g_assert_not_reached ();
break;
}
gst_buffer_unmap (buffer, &buffer_info->map);
gst_buffer_unref (buffer);
buffer_info->buffer = NULL;
} else {
frame->data[0] = audio_in;
frame->extended_data = frame->data;
frame->linesize[0] = in_size;
frame->nb_samples = nsamples = in_size / info->bpf;
frame->buf[0] =
av_buffer_create (NULL, 0, buffer_info_free, buffer_info, 0);
}
/* we have a frame to feed the encoder */
res = avcodec_encode_audio2 (ctx, pkt, frame, have_data);
av_frame_unref (frame);
} else {
GST_LOG_OBJECT (ffmpegaudenc, "draining");
/* flushing the encoder */
res = avcodec_encode_audio2 (ctx, pkt, NULL, have_data);
}
if (res < 0) {
char error_str[128] = { 0, };
g_slice_free (AVPacket, pkt);
av_strerror (res, error_str, sizeof (error_str));
GST_ERROR_OBJECT (enc, "Failed to encode buffer: %d - %s", res, error_str);
return GST_FLOW_OK;
}
GST_LOG_OBJECT (ffmpegaudenc, "got output size %d", res);
if (*have_data) {
GstBuffer *outbuf;
const AVCodec *codec;
GST_LOG_OBJECT (ffmpegaudenc, "pushing size %d", pkt->size);
outbuf =
gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY, pkt->data,
pkt->size, 0, pkt->size, pkt, gst_ffmpegaudenc_free_avpacket);
codec = ffmpegaudenc->context->codec;
if ((codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE) || !buffer) {
/* FIXME: Not really correct, as -1 means "all the samples we got
given so far", which may not be true depending on the codec,
but we have no way to know AFAICT */
ret = gst_audio_encoder_finish_frame (enc, outbuf, -1);
} else {
ret = gst_audio_encoder_finish_frame (enc, outbuf, nsamples);
}
} else {
GST_LOG_OBJECT (ffmpegaudenc, "no output produced");
g_slice_free (AVPacket, pkt);
ret = GST_FLOW_OK;
}
return ret;
}
static GstFlowReturn
gst_decklink_audio_src_create (GstPushSrc * bsrc, GstBuffer ** buffer)
{
GstDecklinkAudioSrc *self = GST_DECKLINK_AUDIO_SRC_CAST (bsrc);
GstFlowReturn flow_ret = GST_FLOW_OK;
const guint8 *data;
glong sample_count;
gsize data_size;
CapturePacket *p;
AudioPacket *ap;
GstClockTime timestamp, duration;
GstClockTime start_time, end_time;
guint64 start_offset, end_offset;
gboolean discont = FALSE;
g_mutex_lock (&self->lock);
while (g_queue_is_empty (&self->current_packets) && !self->flushing) {
g_cond_wait (&self->cond, &self->lock);
}
p = (CapturePacket *) g_queue_pop_head (&self->current_packets);
g_mutex_unlock (&self->lock);
if (self->flushing) {
if (p)
capture_packet_free (p);
GST_DEBUG_OBJECT (self, "Flushing");
return GST_FLOW_FLUSHING;
}
p->packet->GetBytes ((gpointer *) & data);
sample_count = p->packet->GetSampleFrameCount ();
data_size = self->info.bpf * sample_count;
ap = (AudioPacket *) g_malloc0 (sizeof (AudioPacket));
*buffer =
gst_buffer_new_wrapped_full ((GstMemoryFlags) GST_MEMORY_FLAG_READONLY,
(gpointer) data, data_size, 0, data_size, ap,
(GDestroyNotify) audio_packet_free);
ap->packet = p->packet;
p->packet->AddRef ();
ap->input = self->input->input;
ap->input->AddRef ();
timestamp = p->capture_time;
// Jitter and discontinuity handling, based on audiobasesrc
start_time = timestamp;
// Convert to the sample numbers
start_offset =
gst_util_uint64_scale (start_time, self->info.rate, GST_SECOND);
end_offset = start_offset + sample_count;
end_time = gst_util_uint64_scale_int (end_offset, GST_SECOND,
self->info.rate);
duration = end_time - start_time;
if (self->next_offset == (guint64) - 1) {
discont = TRUE;
} else {
guint64 diff, max_sample_diff;
// Check discont
if (start_offset <= self->next_offset)
diff = self->next_offset - start_offset;
else
diff = start_offset - self->next_offset;
max_sample_diff =
gst_util_uint64_scale_int (self->alignment_threshold, self->info.rate,
GST_SECOND);
// Discont!
if (G_UNLIKELY (diff >= max_sample_diff)) {
if (self->discont_wait > 0) {
if (self->discont_time == GST_CLOCK_TIME_NONE) {
self->discont_time = start_time;
} else if (start_time - self->discont_time >= self->discont_wait) {
discont = TRUE;
self->discont_time = GST_CLOCK_TIME_NONE;
}
} else {
discont = TRUE;
}
} else if (G_UNLIKELY (self->discont_time != GST_CLOCK_TIME_NONE)) {
// we have had a discont, but are now back on track!
self->discont_time = GST_CLOCK_TIME_NONE;
}
}
if (discont) {
// Have discont, need resync and use the capture timestamps
if (self->next_offset != (guint64) - 1)
GST_INFO_OBJECT (self, "Have discont. Expected %"
G_GUINT64_FORMAT ", got %" G_GUINT64_FORMAT,
self->next_offset, start_offset);
GST_BUFFER_FLAG_SET (*buffer, GST_BUFFER_FLAG_DISCONT);
self->next_offset = end_offset;
} else {
// No discont, just keep counting
self->discont_time = GST_CLOCK_TIME_NONE;
timestamp =
gst_util_uint64_scale (self->next_offset, GST_SECOND, self->info.rate);
self->next_offset += sample_count;
duration =
gst_util_uint64_scale (self->next_offset, GST_SECOND,
self->info.rate) - timestamp;
}
GST_BUFFER_TIMESTAMP (*buffer) = timestamp;
GST_BUFFER_DURATION (*buffer) = duration;
GST_DEBUG_OBJECT (self,
"Outputting buffer %p with timestamp %" GST_TIME_FORMAT " and duration %"
GST_TIME_FORMAT, *buffer, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (*buffer)),
GST_TIME_ARGS (GST_BUFFER_DURATION (*buffer)));
capture_packet_free (p);
return flow_ret;
}
static GstFlowReturn process_audio_packet(MpegTSDemuxer *demuxer, AVPacket *packet)
{
GstFlowReturn result = GST_FLOW_OK;
Stream *stream = &demuxer->audio;
if (!same_stream(demuxer, stream, packet))
return result;
GstBuffer *buffer = NULL;
GstEvent *newsegment_event = NULL;
void *buffer_data = av_mallocz(packet->size);
if (buffer_data != NULL)
{
memcpy(buffer_data, packet->data, packet->size);
buffer = gst_buffer_new_wrapped_full(0, buffer_data, packet->size, 0, packet->size, buffer_data, &av_free);
if (packet->pts != AV_NOPTS_VALUE)
{
if (demuxer->base_pts == GST_CLOCK_TIME_NONE)
{
demuxer->base_pts = PTS_TO_GSTTIME(packet->pts) + stream->offset_time;
}
gint64 time = PTS_TO_GSTTIME(packet->pts) + stream->offset_time - demuxer->base_pts;
if (time < 0)
time = 0;
if (stream->last_time > 0 && time < (gint64) (stream->last_time - PTS_TO_GSTTIME(G_MAXUINT32)))
{
stream->offset_time += PTS_TO_GSTTIME(MAX_PTS + 1); // Wraparound occured
time = PTS_TO_GSTTIME(packet->pts) + stream->offset_time;
#ifdef VERBOSE_DEBUG_AUDIO
g_print("[Audio wraparound] updating offset_time to %lld\n", stream->offset_time);
#endif
}
#ifdef VERBOSE_DEBUG_AUDIO
g_print("[Audio]: pts=%lld(%.4f) time=%lld (%.4f) offset_time=%lld last_time=%lld\n",
PTS_TO_GSTTIME(packet->pts), (double) PTS_TO_GSTTIME(packet->pts) / GST_SECOND,
time, (double) time / GST_SECOND, stream->offset_time, stream->last_time);
#endif
stream->last_time = time;
GST_BUFFER_TIMESTAMP(buffer) = time;
}
if (packet->duration != 0)
GST_BUFFER_DURATION(buffer) = PTS_TO_GSTTIME(packet->duration);
g_mutex_lock(&demuxer->lock);
stream->segment.position = GST_BUFFER_TIMESTAMP(buffer);
if (stream->discont)
{
GstSegment newsegment;
gst_segment_init(&newsegment, GST_FORMAT_TIME);
newsegment.flags = stream->segment.flags;
newsegment.rate = stream->segment.rate;
newsegment.start = stream->segment.time;
newsegment.stop = stream->segment.stop;
newsegment.time = stream->segment.time;
newsegment.position = stream->segment.position;
newsegment_event = gst_event_new_segment(&newsegment);
GST_BUFFER_FLAG_SET(buffer, GST_BUFFER_FLAG_DISCONT);
stream->discont = FALSE;
#ifdef DEBUG_OUTPUT
g_print("MpegTS: [Audio] NEWSEGMENT: last_stop = %.4f\n", (double) stream->segment.last_stop / GST_SECOND);
#endif
}
g_mutex_unlock(&demuxer->lock);
} else
result = GST_FLOW_ERROR;
if (newsegment_event)
result = gst_pad_push_event(stream->sourcepad, newsegment_event) ? GST_FLOW_OK : GST_FLOW_FLUSHING;
if (result == GST_FLOW_OK)
result = gst_pad_push(stream->sourcepad, buffer);
else
gst_buffer_unref(buffer);
#ifdef VERBOSE_DEBUG_AUDIO
if (result != GST_FLOW_OK)
g_print("MpegTS: Audio push failed: %s\n", gst_flow_get_name(result));
#endif
return result;
}
/*
* Runs the RTP pipeline.
* @param p Pointer to the RTP pipeline.
*/
static void
rtp_pipeline_run (rtp_pipeline * p)
{
GstFlowReturn flow_ret;
GMainLoop *mainloop = NULL;
GstBus *bus;
gint i, j;
/* Check parameters. */
if (p == NULL) {
return;
}
/* Create mainloop. */
mainloop = g_main_loop_new (NULL, FALSE);
if (!mainloop) {
return;
}
/* Add bus callback. */
bus = gst_pipeline_get_bus (GST_PIPELINE (p->pipeline));
gst_bus_add_watch (bus, rtp_bus_callback, (gpointer) mainloop);
gst_object_unref (bus);
/* Set pipeline to PLAYING. */
gst_element_set_state (p->pipeline, GST_STATE_PLAYING);
/* Push custom event into the pipeline */
if (p->custom_event) {
GstPad *srcpad;
/* Install a probe to drop the event after it being serialized */
srcpad = gst_element_get_static_pad (p->rtppay, "src");
gst_pad_add_probe (srcpad, GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM,
pay_event_probe_cb, p, NULL);
gst_object_unref (srcpad);
/* Install a probe to trace the deserialized event after depayloading */
srcpad = gst_element_get_static_pad (p->rtpdepay, "src");
gst_pad_add_probe (srcpad, GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM,
depay_event_probe_cb, p, NULL);
gst_object_unref (srcpad);
/* Send the event */
gst_element_send_event (p->appsrc, gst_event_ref (p->custom_event));
}
/* Push data into the pipeline */
for (i = 0; i < LOOP_COUNT; i++) {
const guint8 *data = p->frame_data;
for (j = 0; j < p->frame_count; j++) {
GstBuffer *buf;
buf =
gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
(guint8 *) data, p->frame_data_size, 0, p->frame_data_size, NULL,
NULL);
g_signal_emit_by_name (p->appsrc, "push-buffer", buf, &flow_ret);
fail_unless_equals_int (flow_ret, GST_FLOW_OK);
data += p->frame_data_size;
gst_buffer_unref (buf);
}
}
g_signal_emit_by_name (p->appsrc, "end-of-stream", &flow_ret);
/* Run mainloop. */
g_main_loop_run (mainloop);
/* Set pipeline to NULL. */
gst_element_set_state (p->pipeline, GST_STATE_NULL);
/* Release mainloop. */
g_main_loop_unref (mainloop);
fail_if (p->custom_event);
}
static gpointer
decoder_thread (gpointer data)
{
App *const app = data;
GError *error = NULL;
GstVaapiDecoderStatus status;
GstVaapiSurfaceProxy *proxy;
RenderFrame *rfp;
GstBuffer *buffer;
GstClockTime pts;
gboolean got_surface, got_eos = FALSE;
gint64 end_time;
guint ofs;
g_print ("Decoder thread started\n");
#define SEND_ERROR(...) \
do { \
error = g_error_new(APP_ERROR, APP_ERROR_DECODER, __VA_ARGS__); \
goto send_error; \
} while (0)
pts = g_get_monotonic_time ();
ofs = 0;
while (!app->decoder_thread_cancel) {
if (G_UNLIKELY (ofs == app->file_size))
buffer = NULL;
else {
const gsize size = MIN (4096, app->file_size - ofs);
buffer = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
app->file_data, app->file_size, ofs, size, NULL, NULL);
if (!buffer)
SEND_ERROR ("failed to allocate new buffer");
ofs += size;
}
if (!gst_vaapi_decoder_put_buffer (app->decoder, buffer))
SEND_ERROR ("failed to push buffer to decoder");
gst_buffer_replace (&buffer, NULL);
get_surface:
status = gst_vaapi_decoder_get_surface (app->decoder, &proxy);
switch (status) {
case GST_VAAPI_DECODER_STATUS_SUCCESS:
gst_vaapi_surface_proxy_set_destroy_notify (proxy,
(GDestroyNotify) decoder_release, app);
rfp = render_frame_new ();
if (!rfp)
SEND_ERROR ("failed to allocate render frame");
rfp->proxy = proxy;
rfp->pts = pts;
rfp->duration = app->frame_duration;
pts += app->frame_duration;
g_async_queue_push (app->decoder_queue, rfp);
break;
case GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA:
/* nothing to do, just continue to the next iteration */
break;
case GST_VAAPI_DECODER_STATUS_END_OF_STREAM:
gst_vaapi_decoder_flush (app->decoder);
if (got_eos)
goto send_eos;
got_eos = TRUE;
break;
case GST_VAAPI_DECODER_STATUS_ERROR_NO_SURFACE:
end_time = g_get_monotonic_time () + G_TIME_SPAN_SECOND;
g_mutex_lock (&app->mutex);
got_surface = g_cond_wait_until (&app->decoder_ready, &app->mutex,
end_time);
g_mutex_unlock (&app->mutex);
if (got_surface)
goto get_surface;
SEND_ERROR ("failed to acquire a surface within one second");
break;
default:
SEND_ERROR ("%s", get_decoder_status_string (status));
break;
}
}
return NULL;
#undef SEND_ERROR
send_eos:
app_send_eos (app);
return NULL;
send_error:
app_send_error (app, error);
return NULL;
}
static void
byzanz_encoder_gstreamer_need_data (GstAppSrc *src, guint length, gpointer data)
{
ByzanzEncoder *encoder = data;
ByzanzEncoderGStreamer *gst = data;
GstBuffer *buffer;
cairo_t *cr;
cairo_surface_t *surface;
cairo_region_t *region;
GError *error = NULL;
guint64 msecs;
int i, num_rects;
if (!byzanz_deserialize (encoder->input_stream, &msecs, &surface, ®ion, encoder->cancellable, &error)) {
gst_element_message_full (GST_ELEMENT (src), GST_MESSAGE_ERROR,
error->domain, error->code, g_strdup (error->message), NULL, __FILE__, GST_FUNCTION, __LINE__);
g_error_free (error);
return;
}
if (surface == NULL) {
gst_app_src_end_of_stream (gst->src);
if (gst->audiosrc)
gst_element_send_event (gst->audiosrc, gst_event_new_eos ());
return;
}
if (cairo_surface_get_reference_count (gst->surface) > 1) {
cairo_surface_t *copy = cairo_image_surface_create (CAIRO_FORMAT_RGB24,
cairo_image_surface_get_width (gst->surface), cairo_image_surface_get_height (gst->surface));
cr = cairo_create (copy);
cairo_set_source_surface (cr, gst->surface, 0, 0);
cairo_paint (cr);
cairo_destroy (cr);
cairo_surface_destroy (gst->surface);
gst->surface = copy;
}
cr = cairo_create (gst->surface);
cairo_set_source_surface (cr, surface, 0, 0);
num_rects = cairo_region_num_rectangles (region);
for (i = 0; i < num_rects; i++) {
cairo_rectangle_int_t rect;
cairo_region_get_rectangle (region, i, &rect);
cairo_rectangle (cr, rect.x, rect.y,
rect.width, rect.height);
}
cairo_fill (cr);
cairo_destroy (cr);
/* create a buffer and send it */
/* FIXME: stride just works? */
cairo_surface_reference (gst->surface);
buffer = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
cairo_image_surface_get_data (gst->surface),
cairo_image_surface_get_stride (gst->surface) * cairo_image_surface_get_height (gst->surface),
0,
cairo_image_surface_get_stride (gst->surface) * cairo_image_surface_get_height (gst->surface),
gst->surface,
(GDestroyNotify) cairo_surface_destroy);
GST_BUFFER_TIMESTAMP (buffer) = msecs * GST_MSECOND;
gst_app_src_push_buffer (gst->src, buffer);
}
static GstFlowReturn
gst_decklink_video_src_create (GstPushSrc * bsrc, GstBuffer ** buffer)
{
GstDecklinkVideoSrc *self = GST_DECKLINK_VIDEO_SRC_CAST (bsrc);
GstFlowReturn flow_ret = GST_FLOW_OK;
const guint8 *data;
gsize data_size;
VideoFrame *vf;
CaptureFrame *f;
GstCaps *caps;
gboolean caps_changed = FALSE;
g_mutex_lock (&self->lock);
while (g_queue_is_empty (&self->current_frames) && !self->flushing) {
g_cond_wait (&self->cond, &self->lock);
}
f = (CaptureFrame *) g_queue_pop_head (&self->current_frames);
g_mutex_unlock (&self->lock);
if (self->flushing) {
if (f)
capture_frame_free (f);
GST_DEBUG_OBJECT (self, "Flushing");
return GST_FLOW_FLUSHING;
}
// If we're not flushing, we should have a valid frame from the queue
g_assert (f != NULL);
g_mutex_lock (&self->lock);
if (self->caps_mode != f->mode) {
if (self->mode == GST_DECKLINK_MODE_AUTO) {
GST_DEBUG_OBJECT (self, "Mode changed from %d to %d", self->caps_mode,
f->mode);
caps_changed = TRUE;
self->caps_mode = f->mode;
} else {
g_mutex_unlock (&self->lock);
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION,
("Invalid mode in captured frame"),
("Mode set to %d but captured %d", self->caps_mode, f->mode));
capture_frame_free (f);
return GST_FLOW_NOT_NEGOTIATED;
}
}
if (self->caps_format != f->format) {
if (self->video_format == GST_DECKLINK_VIDEO_FORMAT_AUTO) {
GST_DEBUG_OBJECT (self, "Format changed from %d to %d", self->caps_format,
f->format);
caps_changed = TRUE;
self->caps_format = f->format;
} else {
g_mutex_unlock (&self->lock);
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION,
("Invalid pixel format in captured frame"),
("Format set to %d but captured %d", self->caps_format, f->format));
capture_frame_free (f);
return GST_FLOW_NOT_NEGOTIATED;
}
}
g_mutex_unlock (&self->lock);
if (caps_changed) {
caps = gst_decklink_mode_get_caps (f->mode, f->format);
gst_video_info_from_caps (&self->info, caps);
gst_base_src_set_caps (GST_BASE_SRC_CAST (bsrc), caps);
gst_element_post_message (GST_ELEMENT_CAST (self),
gst_message_new_latency (GST_OBJECT_CAST (self)));
gst_caps_unref (caps);
}
f->frame->GetBytes ((gpointer *) & data);
data_size = self->info.size;
vf = (VideoFrame *) g_malloc0 (sizeof (VideoFrame));
*buffer =
gst_buffer_new_wrapped_full ((GstMemoryFlags) GST_MEMORY_FLAG_READONLY,
(gpointer) data, data_size, 0, data_size, vf,
(GDestroyNotify) video_frame_free);
vf->frame = f->frame;
f->frame->AddRef ();
vf->input = self->input->input;
vf->input->AddRef ();
GST_BUFFER_TIMESTAMP (*buffer) = f->capture_time;
GST_BUFFER_DURATION (*buffer) = f->capture_duration;
gst_buffer_add_video_time_code_meta (*buffer, f->tc);
GST_DEBUG_OBJECT (self,
"Outputting buffer %p with timestamp %" GST_TIME_FORMAT " and duration %"
GST_TIME_FORMAT, *buffer, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (*buffer)),
GST_TIME_ARGS (GST_BUFFER_DURATION (*buffer)));
capture_frame_free (f);
return flow_ret;
}
static void
gst_decklink_src_task (void *priv)
{
GstDecklinkSrc *decklinksrc = GST_DECKLINK_SRC (priv);
GstBuffer *buffer;
GstBuffer *audio_buffer;
IDeckLinkVideoInputFrame *video_frame;
IDeckLinkAudioInputPacket *audio_frame;
void *data;
gsize data_size;
int n_samples;
GstFlowReturn ret;
const GstDecklinkMode *mode;
gboolean discont = FALSE;
GST_DEBUG_OBJECT (decklinksrc, "task");
g_mutex_lock (&decklinksrc->mutex);
while (decklinksrc->video_frame == NULL && !decklinksrc->stop) {
g_cond_wait (&decklinksrc->cond, &decklinksrc->mutex);
}
video_frame = decklinksrc->video_frame;
audio_frame = decklinksrc->audio_frame;
decklinksrc->video_frame = NULL;
decklinksrc->audio_frame = NULL;
g_mutex_unlock (&decklinksrc->mutex);
if (decklinksrc->stop) {
if (video_frame)
video_frame->Release ();
if (audio_frame)
audio_frame->Release ();
GST_DEBUG ("stopping task");
return;
}
/* warning on dropped frames */
/* FIXME: post QoS message */
if (decklinksrc->dropped_frames - decklinksrc->dropped_frames_old > 0) {
GST_ELEMENT_WARNING (decklinksrc, RESOURCE, READ,
("Dropped %d frame(s), for a total of %d frame(s)",
decklinksrc->dropped_frames - decklinksrc->dropped_frames_old,
decklinksrc->dropped_frames), (NULL));
decklinksrc->dropped_frames_old = decklinksrc->dropped_frames;
/* FIXME: discont = TRUE; ? */
}
if (!decklinksrc->started) {
gst_decklink_src_send_initial_events (decklinksrc);
decklinksrc->started = TRUE;
}
mode = gst_decklink_get_mode (decklinksrc->mode);
video_frame->GetBytes (&data);
data_size = mode->width * mode->height * 2;
if (decklinksrc->copy_data) {
buffer = gst_buffer_new_and_alloc (data_size);
gst_buffer_fill (buffer, 0, data, data_size);
video_frame->Release ();
} else {
VideoFrame *vf;
vf = (VideoFrame *) g_malloc0 (sizeof (VideoFrame));
buffer = gst_buffer_new_wrapped_full ((GstMemoryFlags) 0, data, data_size,
0, data_size, vf, (GDestroyNotify) video_frame_free);
vf->frame = video_frame;
vf->input = decklinksrc->input;
vf->input->AddRef ();
}
GST_BUFFER_TIMESTAMP (buffer) =
gst_util_uint64_scale_int (decklinksrc->frame_num * GST_SECOND,
mode->fps_d, mode->fps_n);
GST_BUFFER_DURATION (buffer) =
gst_util_uint64_scale_int ((decklinksrc->frame_num + 1) * GST_SECOND,
mode->fps_d, mode->fps_n) - GST_BUFFER_TIMESTAMP (buffer);
GST_BUFFER_OFFSET (buffer) = decklinksrc->frame_num;
GST_BUFFER_OFFSET_END (buffer) = decklinksrc->frame_num; /* FIXME: +1? */
/* FIXME: set video meta */
if (decklinksrc->frame_num == 0)
discont = TRUE;
if (discont)
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
else
GST_BUFFER_FLAG_UNSET (buffer, GST_BUFFER_FLAG_DISCONT);
/* FIXME: proper flow aggregation with audio flow */
ret = gst_pad_push (decklinksrc->videosrcpad, buffer);
if (!(ret == GST_FLOW_OK || ret == GST_FLOW_NOT_LINKED ||
ret == GST_FLOW_FLUSHING)) {
GST_ELEMENT_ERROR (decklinksrc, STREAM, FAILED,
("Internal data stream error."),
("stream stopped, reason %s", gst_flow_get_name (ret)));
goto pause;
}
if (gst_pad_is_linked (decklinksrc->audiosrcpad)) {
n_samples = audio_frame->GetSampleFrameCount ();
audio_frame->GetBytes (&data);
audio_buffer = gst_buffer_new_and_alloc (n_samples * 2 * 2);
gst_buffer_fill (audio_buffer, 0, data, n_samples * 2 * 2);
GST_BUFFER_TIMESTAMP (audio_buffer) =
gst_util_uint64_scale_int (decklinksrc->num_audio_samples * GST_SECOND,
1, 48000);
/* FIXME: should be next_timestamp - timestamp for perfect stream */
GST_BUFFER_DURATION (audio_buffer) =
gst_util_uint64_scale_int (n_samples * GST_SECOND, 1, 48000);
GST_BUFFER_OFFSET (audio_buffer) = decklinksrc->num_audio_samples;
GST_BUFFER_OFFSET_END (audio_buffer) =
GST_BUFFER_OFFSET (audio_buffer) + n_samples;
decklinksrc->num_audio_samples += n_samples;
/* FIXME: proper flow aggregation with video flow */
ret = gst_pad_push (decklinksrc->audiosrcpad, audio_buffer);
if (!(ret == GST_FLOW_OK || ret == GST_FLOW_NOT_LINKED ||
ret == GST_FLOW_FLUSHING)) {
GST_ELEMENT_ERROR (decklinksrc, STREAM, FAILED,
("Internal data stream error."),
("stream stopped, reason %s", gst_flow_get_name (ret)));
goto pause;
}
}
done:
if (audio_frame)
audio_frame->Release ();
return;
pause:
{
const gchar *reason = gst_flow_get_name (ret);
GstEvent *event = NULL;
GST_DEBUG_OBJECT (decklinksrc, "pausing task, reason %s", reason);
gst_task_pause (decklinksrc->task);
if (ret == GST_FLOW_EOS) {
/* perform EOS logic (very crude, we don't even keep a GstSegment) */
event = gst_event_new_eos ();
} else if (ret == GST_FLOW_NOT_LINKED || ret < GST_FLOW_EOS) {
event = gst_event_new_eos ();
/* for fatal errors we post an error message, post the error
* first so the app knows about the error first.
* Also don't do this for FLUSHING because it happens
* due to flushing and posting an error message because of
* that is the wrong thing to do, e.g. when we're doing
* a flushing seek. */
GST_ELEMENT_ERROR (decklinksrc, STREAM, FAILED,
("Internal data flow error."),
("streaming task paused, reason %s (%d)", reason, ret));
}
if (event != NULL) {
GST_INFO_OBJECT (decklinksrc->videosrcpad, "pushing EOS event");
gst_pad_push_event (decklinksrc->videosrcpad, gst_event_ref (event));
GST_INFO_OBJECT (decklinksrc->audiosrcpad, "pushing EOS event");
gst_pad_push_event (decklinksrc->audiosrcpad, event);
}
goto done;
}
}
/* Ideas from gstjpegparse.c */
GstTagList *
gst_droidcamsrc_exif_tags_from_jpeg_data (void *data, size_t size)
{
GstByteReader reader;
guint16 len = 0;
const gchar *id;
const guint8 *exif = NULL;
GstBuffer *buff;
GstTagList *tags = NULL;
void *app1 = memmem (data, size, marker, 2);
if (!app1) {
GST_ERROR ("No tags found");
goto out;
}
size -= (app1 - data);
gst_byte_reader_init (&reader, app1, size);
if (!gst_byte_reader_skip (&reader, 2)) {
GST_ERROR ("Not enough jpeg data for tags");
goto out;
}
if (!gst_byte_reader_get_uint16_be (&reader, &len)) {
GST_ERROR ("Failed to get APP1 size");
goto out;
}
len -= 2; /* for the marker itself */
if (!gst_byte_reader_peek_string_utf8 (&reader, &id)) {
goto out;
}
if (!strncmp (id, "Exif", 4)) {
/* id + NUL + padding */
if (!gst_byte_reader_skip (&reader, 6)) {
goto out;
}
len -= 6;
if (!gst_byte_reader_get_data (&reader, len, &exif)) {
goto out;
}
buff =
gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY, (gpointer) exif,
len, 0, len, NULL, NULL);
tags = gst_tag_list_from_exif_buffer_with_tiff_header (buff);
gst_buffer_unref (buff);
return tags;
}
out:
return NULL;
}
GstTagList *
gst_droidcamsrc_exif_tags_from_jpeg_data (void *data, size_t size)
{
GstTagList *tags = NULL;
ExifMem *mem = exif_mem_new (g_malloc0, g_realloc, g_free);
ExifData *exif = exif_data_new_mem (mem);
unsigned char *exif_data = NULL;
void *_exif_data = NULL;
unsigned int exif_data_size = 0;
GstBuffer *buffer;
ExifEntry *iso;
int x, i;
exif_data_load_data (exif, data, size);
exif_data_set_data_type (exif, EXIF_DATA_TYPE_COMPRESSED);
exif_data_save_data (exif, &exif_data, &exif_data_size);
if (!exif_data_size) {
goto out;
}
if (exif_data_size <= 6) {
goto out;
}
/* dump the data. based on libexif code */
for (x = 0; x < EXIF_IFD_COUNT; x++) {
if (exif->ifd[x] && exif->ifd[x]->count) {
for (i = 0; i < exif->ifd[x]->count; i++) {
char val[1024];
ExifEntry *e = exif->ifd[x]->entries[i];
GST_LOG ("Exif IFD: %s. Tag 0x%x (%s) = %s", exif_ifd_get_name (x),
e->tag, exif_tag_get_name_in_ifd (e->tag, exif_entry_get_ifd (e)),
exif_entry_get_value (e, val, sizeof (val)));
}
}
}
_exif_data = exif_data;
exif_data += 6;
exif_data_size -= 6;
buffer = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
exif_data, exif_data_size, 0, exif_data_size, NULL, NULL);
tags = gst_tag_list_from_exif_buffer_with_tiff_header (buffer);
gst_buffer_unref (buffer);
/* We don't want these tags */
gst_tag_list_remove_tag (tags, GST_TAG_DEVICE_MANUFACTURER);
gst_tag_list_remove_tag (tags, GST_TAG_DEVICE_MODEL);
gst_tag_list_remove_tag (tags, GST_TAG_APPLICATION_NAME);
gst_tag_list_remove_tag (tags, GST_TAG_DATE_TIME);
/* we have a mess with ISO so we will just behave as N9 */
iso = exif_content_get_entry (exif->ifd[EXIF_IFD_EXIF],
EXIF_TAG_ISO_SPEED_RATINGS);
if (iso) {
#ifdef __arm__
guint16 val = exif_get_short (iso->data, EXIF_BYTE_ORDER_MOTOROLA);
#else
guint16 val = exif_get_short (iso->data, EXIF_BYTE_ORDER_INTEL);
#endif
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_CAPTURING_ISO_SPEED, val, NULL);
}
/* TODO: the following are being dropped
*
* 0x213 EXIF_TAG_YCBCR_POSITIONING
* 0x9004 EXIF_TAG_DATE_TIME_DIGITIZED
* 0x9101 EXIF_TAG_COMPONENTS_CONFIGURATION
* 0xa001 EXIF_TAG_COLOR_SPACE
* 0xa002 EXIF_TAG_PIXEL_X_DIMENSION
* 0xa003 EXIF_TAG_PIXEL_Y_DIMENSION
* 0xa005 EXIF_TAG_INTEROPERABILITY_IFD_POINTER
* thumbnail.
* 0x100 EXIF_TAG_IMAGE_WIDTH
* 0x101 EXIF_TAG_IMAGE_LENGTH
* 0x9203 EXIF_TAG_BRIGHTNESS_VALUE
* 0x9205 EXIF_TAG_MAX_APERTURE_VALUE
* 0x9206 EXIF_TAG_SUBJECT_DISTANCE
* 0x9208 EXIF_TAG_LIGHT_SOURCE
* 0x9286 EXIF_TAG_USER_COMMENT
*/
out:
if (_exif_data) {
exif_mem_free (mem, _exif_data);
}
if (exif) {
exif_data_free (exif);
}
exif_mem_unref (mem);
return tags;
}
static GstFlowReturn
gst_aravis_create (GstPushSrc * push_src, GstBuffer ** buffer)
{
GstAravis *gst_aravis;
ArvBuffer *arv_buffer;
int arv_row_stride;
gst_aravis = GST_ARAVIS (push_src);
do {
arv_buffer = arv_stream_timeout_pop_buffer (gst_aravis->stream, gst_aravis->buffer_timeout_us);
if (arv_buffer != NULL && arv_buffer->status != ARV_BUFFER_STATUS_SUCCESS)
arv_stream_push_buffer (gst_aravis->stream, arv_buffer);
} while (arv_buffer != NULL && arv_buffer->status != ARV_BUFFER_STATUS_SUCCESS);
if (arv_buffer == NULL)
return GST_FLOW_ERROR;
arv_row_stride = arv_buffer->width * ARV_PIXEL_FORMAT_BIT_PER_PIXEL (arv_buffer->pixel_format) / 8;
/* Gstreamer requires row stride to be a multiple of 4 */
if ((arv_row_stride & 0x3) != 0) {
int gst_row_stride;
size_t size;
void *data;
int i;
gst_row_stride = (arv_row_stride & ~(0x3)) + 4;
size = arv_buffer->height * gst_row_stride;
data = g_malloc (size);
for (i = 0; i < arv_buffer->height; i++)
memcpy (((char *) data) + i * gst_row_stride, ((char *) arv_buffer->data) + i * arv_row_stride, arv_row_stride);
*buffer = gst_buffer_new_wrapped (data, size);
} else {
*buffer = gst_buffer_new_wrapped_full (0,
arv_buffer->data,
arv_buffer->size,
0,
arv_buffer->size,
NULL,
NULL);
}
if (!gst_base_src_get_do_timestamp(GST_BASE_SRC(push_src))) {
if (gst_aravis->timestamp_offset == 0) {
gst_aravis->timestamp_offset = arv_buffer->timestamp_ns;
gst_aravis->last_timestamp = arv_buffer->timestamp_ns;
}
GST_BUFFER_PTS (*buffer) = arv_buffer->timestamp_ns - gst_aravis->timestamp_offset;
GST_BUFFER_DURATION (*buffer) = arv_buffer->timestamp_ns - gst_aravis->last_timestamp;
gst_aravis->last_timestamp = arv_buffer->timestamp_ns;
}
arv_stream_push_buffer (gst_aravis->stream, arv_buffer);
return GST_FLOW_OK;
}
static GstFlowReturn
gst_shmdata_src_create (GstPushSrc *psrc, GstBuffer **outbuf)
{
GstShmdataSrc *self = GST_SHMDATA_SRC (psrc);
if (self->unlocked) {
return GST_FLOW_FLUSHING;
}
g_mutex_lock (&self->on_data_mutex);
while (!self->on_data && !self->unlocked)
g_cond_wait_until (&self->on_data_cond,
&self->on_data_mutex,
g_get_monotonic_time () + 10 * G_TIME_SPAN_MILLISECOND);
if (self->unlocked) {
self->on_data = FALSE;
g_mutex_unlock (&self->on_data_mutex);
gst_shmdata_src_make_data_rendered(self);
return GST_FLOW_FLUSHING;
}
if (FALSE == self->on_data) {
g_mutex_unlock (&self->on_data_mutex);
return GST_FLOW_FLUSHING;
}
self->on_data = FALSE;
if (self->has_new_caps &&
(GST_STATE_PAUSED == GST_STATE(self) || GST_STATE_PLAYING == GST_STATE(self))) {
self->has_new_caps = FALSE;
g_object_notify(G_OBJECT(self), "caps");
GstPad *pad = gst_element_get_static_pad (GST_ELEMENT(self),"src");
if(!gst_pad_set_caps (pad, self->caps)) {
GST_ELEMENT_ERROR (GST_ELEMENT(self), CORE, NEGOTIATION, (NULL),
("caps fix caps from shmdata type description"));
return GST_FLOW_ERROR;
}
gst_object_unref(pad);
}
if(!self->copy_buffers){
*outbuf = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
self->current_data,
self->current_size,
0,
self->current_size,
self,
gst_shmdata_src_on_data_rendered);
} else {
void *data = malloc(self->current_size);
memcpy(data, self->current_data, self->current_size);
*outbuf = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
data,
self->current_size,
0,
self->current_size,
data, // user_data
g_free);
//*outbuf = gst_buffer_copy_deep (tmp); // not available with earlier gst 1.0
gst_shmdata_src_on_data_rendered(self);
//gst_buffer_unref(tmp);
}
if (self->is_first_read) {
gst_shmdata_src_make_data_rendered(self);
self->is_first_read = FALSE;
}
g_mutex_unlock (&self->on_data_mutex);
return GST_FLOW_OK;
}
/* Takes ownership of pixbuf; call with OBJECT_LOCK */
static void
gst_gdk_pixbuf_overlay_set_pixbuf (GstGdkPixbufOverlay * overlay,
GdkPixbuf * pixbuf)
{
GstVideoMeta *video_meta;
guint8 *pixels, *p;
gint width, height, stride, w, h, plane;
if (!gdk_pixbuf_get_has_alpha (pixbuf)) {
GdkPixbuf *alpha_pixbuf;
/* FIXME: we could do this much more efficiently ourselves below, but
* we're lazy for now */
/* FIXME: perhaps expose substitute_color via properties */
alpha_pixbuf = gdk_pixbuf_add_alpha (pixbuf, FALSE, 0, 0, 0);
g_object_unref (pixbuf);
pixbuf = alpha_pixbuf;
}
width = gdk_pixbuf_get_width (pixbuf);
height = gdk_pixbuf_get_height (pixbuf);
stride = gdk_pixbuf_get_rowstride (pixbuf);
pixels = gdk_pixbuf_get_pixels (pixbuf);
/* the memory layout in GdkPixbuf is R-G-B-A, we want:
* - B-G-R-A on little-endian platforms
* - A-R-G-B on big-endian platforms
*/
for (h = 0; h < height; ++h) {
p = pixels + (h * stride);
for (w = 0; w < width; ++w) {
guint8 tmp;
/* R-G-B-A ==> B-G-R-A */
tmp = p[0];
p[0] = p[2];
p[2] = tmp;
if (G_BYTE_ORDER == G_BIG_ENDIAN) {
/* B-G-R-A ==> A-R-G-B */
/* we can probably assume sane alignment */
*((guint32 *) p) = GUINT32_SWAP_LE_BE (*((guint32 *) p));
}
p += 4;
}
}
/* assume we have row padding even for the last row */
/* transfer ownership of pixbuf to the buffer */
overlay->pixels = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
pixels, height * stride, 0, height * stride, pixbuf,
(GDestroyNotify) g_object_unref);
video_meta = gst_buffer_add_video_meta (overlay->pixels,
GST_VIDEO_FRAME_FLAG_NONE, GST_VIDEO_OVERLAY_COMPOSITION_FORMAT_RGB,
width, height);
for (plane = 0; plane < video_meta->n_planes; ++plane)
video_meta->stride[plane] = stride;
overlay->update_composition = TRUE;
GST_INFO_OBJECT (overlay, "Updated pixbuf, %d x %d", width, height);
}